@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    background-color: #f0f4f8;
}

/* Custom styles for the chart */
.gridline path,
.gridline line {
    fill: none;
    stroke: #e2e8f0;
    shape-rendering: crispEdges;
}

.axis path,
.axis line {
    fill: none;
    stroke: #4a5568;
    shape-rendering: crispEdges;
}

.axis text {
    font-size: 12px;
    fill: #4a5568;
}

.area {
    fill: url(#area-gradient);
    stroke-width: 2px;
    stroke: #3b82f6;
}

.timeline-dot {
    fill: #3b82f6;
    stroke: white;
    stroke-width: 2px;
    transition: r 0.2s ease-in-out, fill 0.2s ease-in-out, stroke 0.2s ease-in-out, stroke-width 0.2s ease-in-out;
    cursor: pointer;
}

.timeline-dot:hover, .timeline-dot.selected {
    fill: #ef4444; /* Red for selected/hover */
}

.timeline-dot.highlighted {
    fill: #f59e0b; /* Amber for search highlight */
    stroke: #b45309;
    stroke-width: 3px;
    r: 15px; /* Increase radius for highlight */
}

#tooltip {
    position: absolute;
    z-index: 10;
    visibility: hidden;
    background-color: rgba(17, 24, 39, 0.9); /* Darker tooltip */
    color: white;
    max-width: 300px;
    padding: 1rem;
    font-size: 0.875rem;
    border: 1px solid #4b5563;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transition: opacity 0.2s;
    pointer-events: none; /* Important for mouse events to pass through */
}

#selected-info-panel {
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 0.75rem;
    padding: 1.5rem;
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.toggle-btn {
    padding: 0.5rem 1.25rem;
    border: none;
    background-color: transparent;
    color: #4b5563;
    font-weight: 500;
    border-radius: 9999px; /* pill shape */
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.toggle-btn.active {
    background-color: white;
    color: #1d4ed8;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* Added for prose styling on Gemini output */
#insights-content p {
    margin-bottom: 1rem;
}